Study of the carbonation of natural Ca silicate hydrate (CSH) phases provides a useful insight into the alteration processes and evolution of cement phases over long-timescales more comparable with those considered in performance assessments.
Downhole logging data from drillholes through basement formations, when integrated with recovered core and geophysical remote sensing data, can provide new insights into crustal accretion processes, lithosphere hydrogeology and associated alteration processes, and variations in the physical properties of the oceanic lithosphere over time.
Based on detailed data, the Smith Corona case provides insights into the resource alteration processes and how dynamic capabilities operate.
Regardless of these complicating factors, serpentinization is a common alteration process on Earth and a major pathway for producing H2 and CH4 over a wide range of geological, environmental, and laboratory conditions, potentially contributing to the origins and early evolution of life (Schrenk et al., 2013).
The presence of separate gypsum and calcite levels suggests a slow-rate alteration process, started with the crystallization and growth of a carbonate layer and its later, partial reaction with S, mostly limited to its outermost part.
The correlation between the alteration process, the charge reduction and SWP is presented.
The alteration process, involving the breakage and the slippage of the links embedded in the macromolecular network, is modelled by the evolution of the average number of monomer segments per chain during stretching.
Markusson, S. H. & Stefansson, A. Geothermal surface alteration of basalts, Krysuvik Iceland-Alteration mineralogy, water chemistry and the effects of acid supply on the alteration process.
Diagenesis is considered a relatively low-pressure, low-temperature alteration process, whereas metamorphism is considered to be a rock-alteration process occurring at relatively higher pressures and temperatures.
